Fibre Channel link failures

You might need to solve problems on the Storwize® V3500 system and its connection to the storage area network (SAN) when an optional Fibre Channel host interface adapter is being used.When a failure occurs on a single Fibre Channel link, the small form-factor pluggable (SFP) transceiver might need to be replaced.

Before you begin

The following items can indicate that a single Fibre Channel link failed:
  • The SAN monitoring tools of the customer
  • The Fibre Channel status LEDs at the rear of the node canister
  • An error that indicates a single port failed

Procedure

Attempt each of these actions, in the following order, until the failure is fixed.

  1. Ensure that the Fibre Channel cable is securely connected at each end.
  2. Replace the Fibre Channel cable.
  3. Replace the SFP transceiver for the failing port on the node.
  4. Perform the Fibre Channel switch service procedures for a failing Fibre Channel link. This procedure might involve replacing the SFP transceiver at the switch.
  5. Replace the Fibre Channel adapter on the node.
  6. Replace the Fibre Channel host interface adapter. Refer to Replacing a host interface adapter, ensuring the Fibre Channel Small Form-factor Pluggable (SFP) transceivers from the failed host interface adapter are reused with the replacement host interface adapter.